N.M. Admin. Code § 17.12.780.9
Provisions for rate filings are divided into the three (3) levels of operation set out in the classification of water utilities in NMPSC Rule 710.4 [17.12.1.7 NMAC]. NMPSC Rule 780 [17.12.780 NMAC] provides that water utilities shall file for rates in one of three formats. Class A and Class B water utilities as defined in NMPSC Rule 710.4 [17.12.1.7 NMAC] must file the most comprehensive package, set forth in the Appendix to NMPSC Rule 730 [17.12.730 NMAC]; Class C water utilities as defined in NMPSC Rule 710.4 [17.12.1.7 NMAC] may file a simpler package, set forth in the Appendix; Class D water utilities as defined in NMPSC Rule 710.4 [17.12.1.7 NMAC] may file the most abbreviated package, set forth in the Appendix.
N.M. Admin. Code § 17.12.780.9